ABB ACQ810-04, Руководство по оборудованию, Страница: 78 / 144

78 Installation
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Power cable connection procedure
WARNING! Follow the instructions in chapter Safety instructions . Ignoring the
instructions can cause physical injury or death, or damage to the equipment.
1. Lead the input cables into the inside of the cabinet. Ground the cable shield 360° at
the lead-through plate.
2. Twist the cable shields of the input cables into bundles and connect them and any
separate ground conductors or cables to the PE (ground) terminal of the input power
cabling panel.
3. Connect the phase conductors of the input cables to terminals U1, V1 and W1 of the
input cabling panel. For the tightening torques, see page 34 .
4. Lead the motor cables into the inside of the cabinet. Ground the cable shield 360° at
the lead-through plate.
5. Twist the cable shields of the motor cables into bundles and connect them and any
separate ground conductors or cables to the PE (ground) terminal of the output power
cabling panel.
6. Connect the phase conductors of the motor cables to terminals U2, V2, W2 of the
output cabling panel. For the tightening torques, see page 34 .
1 For alternatives, see section Selecting the supply disconnecting device on page 43. In the mounting
example of this chapter, the disconnecting device is not in the same cubicle with the drive module.
2 If a shielded cable is used (not required but recommended) and the conductivity of the shield is
< 50% of the conductivity of the phase conductor, use a separate PE cable (2a) or a cable with a
grounding conductor (2b).
3 360-degree grounding is recommended at the cabinet entry if a shielded cable is used. Ground the
other end of the input cable shield or PE conductor at the distribution board.
4 Input and output power cabling panels (H381)
5 360-degree grounding at the cabinet entry is recommended, see page 35.
6 Use a separate grounding cable if the conductivity of the cable shield is < 50% of the conductivity of
the phase conductor and there is no symmetrically constructed grounding conductor in the cable
(see page
51 ).
7 Common mode filter, see page 45 .
8 d u /d t filter (optional, see page 141 ).
9 The drive module frame must be connected to the cabinet frame. See section Arranging the
grounding inside the cabinet on page 34 .
Note:
If there is a symmetrically constructed grounding conductor in the motor cable in addition to the conductive
shield, connect the grounding conductor to the grounding terminal at the drive and motor ends.
Do not use an asymmetrically constructed motor cable. Connecting its fourth conductor at the motor end
increases bearing currents and causes extra wear.